-fire, the air war between hamasandisraeliscontinuing. so let's get right to it. we have alex marquardt in gaza city and christiane amanpour in jerusalem, and, alex, let me begin with you. give us a sense of what's been going there on in gaza. >> reporter: good morning, martha. it's been very consistent pummeling of gaza by the israeli air force and a consistent launching of rockets by these palestinian militant groups. we are hearing the bombings going off rather incessantly. just a short while ago, a palestinian group launched a rocket from just a short distance away. this goes on throughout the day, into the night. around 2:00 a.m. we were woken up by this barrage of artillery fire coming from the navy ship just offshore, the israeli ship. the big question today, whether we'll see a cease-fire brokered by egypt and turkey obviously with the pressure of the u.s. and great britain, or are we going to see that ground invasion by israel? prime minister netanyahu said today they are ready to expand their ground operation. we know egypt and turkey are working feverishly to strike some sort